added ordering of feature ordering to Messaging lead tasks to aligned with handbook

Why is this change being made?

added ordering of feature ordering to Messaging lead tasks to aligned with handbook

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what